Docs: SDK Quickstart Guide — TypeScript

[0xdevcollins]

Summary

Write SDK quickstart guides for all three official Useroutr SDKs.

Pages to Create

1. JavaScript/TypeScript SDK

   • Installation (npm install @useroutr/sdk)
   • Initialization with API key
   • Create a payment
   • Open hosted checkout
   • Create a payout
   • Listen to webhooks
   • TypeScript types reference

2. Python SDK

   • Installation (pip install useroutr)
   • Initialization
   • Create a payment
   • Bulk payouts
   • Error handling

3. Go SDK

   • Installation (go get github.com/useroutr-io/useroutr-go)
   • Initialization
   • Create a payment
   • Webhook verification

4. Getting Started (language-agnostic)

   • Sign up and get API keys
   • Test vs Live mode
   • Make your first payment (end-to-end walkthrough)
   • Set up webhooks

Acceptance Criteria

• Each SDK has installation + init + 3 core examples
• Getting Started guide walks through first payment end-to-end
• All code examples are copy-pasteable and correct
• Language switcher works across all guide pages

[0xdevcollins]

Re-scoped: v1 ships one TypeScript SDK (@useroutr/sdk). Python/Go are deferred post-v1 (docs/02-prd-v1.md §4).